如何创建临时列?mysql查询
如何正确运行此查询:如何创建临时列?mysql查询,mysql,sql,Mysql,Sql,如何正确运行此查询: SELECT sum(1+1) as sum1, sum(sum1 + 2) as sum2 我想创建变量sum1并在其他函数中使用它 使用子查询来别名表达式: select sum1 , sum(sum1 + 2) as sum2 from ( select sum(1+1) as sum1 ) as SubQueryAlias 选择2、4?你能更好地描述一下你想做什么吗?@GordonLinoff实际上我的问题
SELECT
sum(1+1) as sum1,
sum(sum1 + 2) as sum2
我想创建变量sum1并在其他函数中使用它 使用子查询来别名表达式:
select sum1
, sum(sum1 + 2) as sum2
from (
select sum(1+1) as sum1
) as SubQueryAlias
选择2、4
?你能更好地描述一下你想做什么吗?@GordonLinoff实际上我的问题比这更复杂!我将编辑答案,只需一分钟